Technician A says a self-powered test light may be used to diagnose an air bag circuit. Technician B says a conventional 12 v test light may be used to diagnose automotive computer circuits. Who is correct?
A. A only
B. B only
C. both A and B
D. neither A nor B
Answer: D
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Rather than using a direct connection to the motor through a speed sensor to control the output to the motor, a(n) ____________________ measures the different components of the current delivery to the motor.
Fill in the blank(s) with the appropriate word(s).
Technician Asays a full battery test series should be done before testing the starting system. Technician B says the internal condition of the engine has little effect on the operation of the starting system. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B
How would a multistage thermostat operate for a heat pump system with supplemental electric heat?
What will be an ideal response?
The pressure-reducing valve is responsible for
A) controlling the hot-water circulator. B) adding makeup water to the boiler. C) retrieving makeup water from the boiler. D) condensing water vapor.